Mark Hopwood
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markinchina.bsky.social
Mark Hopwood
@markinchina.bsky.social
450 followers 450 following 160 posts
Scientist living in Shenzhen, China. Associate Professor in Marine Biogeochemistry at SUSTech, Associate Editor at JGR:Oceans. Father to a baby dragon.
外冷内热, he/him 🌊 🐻‍❄️ 🐧
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Reposted by Mark Hopwood
deepseadawn.bsky.social
Love papers like this:
"An ACTIONABLE guide to the United Nations' Biodiversity Beyond National Jurisdiction Agreement for research scientists"

aslopubs.onlinelibrary.wiley.com/doi/10.1002/...

🌊 🦑 🧪 #openaccess #deepseamining
An actionable guide to the United Nations' Biodiversity Beyond National Jurisdiction Agreement for research scientists
The United Nations' “Biodiversity Beyond National Jurisdiction” (BBNJ) Agreement establishes a broad framework regulating activities—including scientific research—in marine Areas Beyond National Juri....
aslopubs.onlinelibrary.wiley.com
November 29, 2025 at 5:37 PM
Reposted by Mark Hopwood
geotraces.bsky.social
Missed the GEOTRACES Intermediate Data Product 2025 launch webinar? 🌊

The full event and individual talks are now available to watch:
👉 www.geotraces.org/launch-of-ge...

#IDP2025 #GEOTRACESDataProduct #TraceElements #marinescience #OceanScience
@scor-int.bsky.social @unoceandecade.bsky.social
November 26, 2025 at 3:46 PM
Reposted by Mark Hopwood
marbiogeochem.bsky.social
Do you have Dissolved organic carbon (DOC) and ColouredDOM/FluorescenceDOM data from coastal waters?

Join this BioGeoSea initiative and help create a global, open-access dataset that will transform how we monitor coastal DOC and understand biogeochemical processes.
November 26, 2025 at 7:38 AM
Reposted by Mark Hopwood
eos.org
The "nutritional value" of glacial runoff is changing. Researchers found meltwater from retreating glaciers delivers sediment with lower concentrations of usable iron and manganese to coastal ecosystems. ❄️🧪 eos.org/articles/gla...
Glacier Runoff Becomes Less Nutritious as Glaciers Retreat - Eos
Sediment from retreating, land-terminating glaciers contains proportionally fewer micronutrients such as iron and manganese, reducing the glaciers’ value to microorganisms at the base of the food web.
eos.org
November 25, 2025 at 3:06 PM
Reposted by Mark Hopwood
montereyken.bsky.social
What's interesting as the Thanksgiving Holiday arrives? The first @bgc-argo.bsky.social profiling floats begin to emerge from under Antarctic sea ice each year. Float 5905383 is the first @soccomproject.bsky.social float for 2025/26. It has spent 7.9 years operating under ice.
#argofloats #oneargo
The 3 graphs show temperature, salinity, and oxygen from the surface to 300 m versus year from 2018 through 2025 for profiling float 5905383. The map shows the trajectory of the float from deployment in the Weddell Gyre (green square) and a loop around the Weddell sea to the present position at the red square.
November 25, 2025 at 6:07 AM
Reposted by Mark Hopwood
deepseadawn.bsky.social
✨Neon greens, yellows, and pinks—iNaturalist data has never looked so good!

What is a nudibranch? Where does it live? And where does it get those wild colors? Discover the answers:
ow.ly/fqtq50XwgeW

🦑 🌊 #gischat
Living Color
The weird and wonderful world of nudibranchs
ow.ly
November 22, 2025 at 3:58 PM
markinchina.bsky.social
Unfortunately the west is often in a state of denial to colonial injustices which continue to this day. Greenlandic parents in Denmark are 6x more likely to have their kids taken away. Why? Maybe because tests to determine a fit parent are based on Danish cultural norms
www.bbc.com/news/article...
Greenlandic families fight to get children back after parenting tests banned
The Danish government has banned the use of parental competency tests on Greenlandic families after decades of criticism.
www.bbc.com
November 23, 2025 at 6:53 AM
markinchina.bsky.social
We've known burning fossil fuels causes global warming since 1911. We've known the quantitative relationship between increasing atmospheric CO2 and global warming since 1977. But in 2025 we still cannot achieve a global political consensus on how & when to stop burning fossil fuels 😔 #climatechange
eos.org Eos @eos.org · 7d
One of our favorite features of our Science Policy Tracker is the search feature, which lets you see how the discourse has evolved over the last year. 🧪 📰 (Here are #COP30, RFK Jr., China, NOAA). Check early, check often.
eos.org/research-and...
It's a list of news stories about COP30 It's a list of news stories about RFK Jr. It's a list of news stories about China and science policy It's a list of stories about NOAA and science policy
November 23, 2025 at 6:19 AM
Reposted by Mark Hopwood
zeesm.bsky.social
Can you see the scorpionfish? (hint: eyes to the left, caudal fin to the right) They are tremendously camouflaged and I generally miss them, but this one shot in front of me, dropped onto some coral, and then stayed motionless. 🦑 #scuba #diving #oceans
November 22, 2025 at 11:53 PM
markinchina.bsky.social
Use of citations and paper numbers as evaluation criteria for anything is not only flawed, but also widely abused, even in quality journals.

Stats for my favorite, respected oceanography journal show the "top" 2 2022/23 papers were both outliers, by the same author, and self-cited 23+ times (!!!) 🌊
us.theconversation.com The Conversation U.S. @us.theconversation.com · Feb 4
There is an online underground economy for all things scholarly publishing. Authorship, citations, even academic journal editors, are up for sale. The fraud is so prevalent that it has its own name: paper mills.

A group of editors and computer scientists spent 6 months investigating paper mills.
November 22, 2025 at 5:06 AM
Reposted by Mark Hopwood
hansonmark.bsky.social
We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing:

a 🧵 1/n

Drain: arxiv.org/abs/2511.04820
Strain: direct.mit.edu/qss/article/...
Oligopoly: direct.mit.edu/qss/article/...
A table showing profit margins of major publishers. A snippet of text related to this table is below. 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. A figure detailing the drain on researcher time. 1. The four-fold drain 1.2 Time The number of papers published each year is growing faster than the scientific workforce, with the number of papers per researcher almost doubling between 1996 and 2022 (Figure 1A). This reflects the fact that publishers’ commercial desire to publish (sell) more material has aligned well with the competitive prestige culture in which publications help secure jobs, grants, promotions, and awards. To the extent that this growth is driven by a pressure for profit, rather than scholarly imperatives, it distorts the way researchers spend their time. The publishing system depends on unpaid reviewer labour, estimated to be over 130 million unpaid hours annually in 2020 alone (9). Researchers have complained about the demands of peer-review for decades, but the scale of the problem is now worse, with editors reporting widespread difficulties recruiting reviewers. The growth in publications involves not only the authors’ time, but that of academic editors and reviewers who are dealing with so many review demands. Even more seriously, the imperative to produce ever more articles reshapes the nature of scientific inquiry. Evidence across multiple fields shows that more papers result in ‘ossification’, not new ideas (10). It may seem paradoxical that more papers can slow progress until one considers how it affects researchers’ time. While rewards remain tied to volume, prestige, and impact of publications, researchers will be nudged away from riskier, local, interdisciplinary, and long-term work. The result is a treadmill of constant activity with limited progress whereas core scholarly practices – such as reading, reflecting and engaging with others’ contributions – is de-prioritized. What looks like productivity often masks intellectual exhaustion built on a demoralizing, narrowing scientific vision. A table of profit margins across industries. The section of text related to this table is below: 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. The costs of inaction are plain: wasted public funds, lost researcher time, compromised scientific integrity and eroded public trust. Today, the system rewards commercial publishers first, and science second. Without bold action from the funders we risk continuing to pour resources into a system that prioritizes profit over the advancement of scientific knowledge.
November 11, 2025 at 11:52 AM
Reposted by Mark Hopwood
geotraces.bsky.social
New! GEOTRACES Data Product 2025-Now available! 🌊

Hydrographic and marine biogeochemical data from 123 cruises covering the global ocean

*Bulk download
bodc.ac.uk/geotraces/data/dp/
*Data subsetting
geotraces.webodv.awi.de
*Data analysis, visualisation
explore.webodv.awi.de
*Atlas
egeotraces.org
November 20, 2025 at 4:23 PM
Reposted by Mark Hopwood
letstalkocean.bsky.social
Science fraud is on the rise, facilitated by for-profit, open-access journals (Richardson et al, 2025, PNAS). These same journals are accelerating author and reviewer burnout by profiting from quantity while neglecting quality. Choose society journals where reputation and community are everything!
November 19, 2025 at 8:05 PM
Reposted by Mark Hopwood
letstalkocean.bsky.social
Are you a dynamic, organized ocean scientist and an enthusiastic writer and communicator? Lead and serve your community as an editor @jgr-oceans! Follow this link to apply tinyurl.com/OceansEditors
November 19, 2025 at 3:42 AM
Reposted by Mark Hopwood
soosocean.bsky.social
#PolarPride Reminder: Diversity enriches teams like mixing water masses enriches the Southern Ocean. Different sources, one powerful system. 🌊🌈

The Southern Ocean connects the planet —Polar Pride reminds us that inclusive science is stronger science.

#PolarPride #ScienceIsForEveryone #LGBTQinSTEM
November 18, 2025 at 12:32 AM
markinchina.bsky.social
It always tickles me silly when I read some reviewer's blunt comments about a piece of submitted work being useless/worthless/meritless/unpublishable, without much of a constructive comment about why or how to improve, and the authors reply... "Thank you for this insightful/thoughtful comment" 😅
November 17, 2025 at 5:01 AM
markinchina.bsky.social
The domination of scientific publishing by major commercial publishers is damaging science... Amen to that.

Journals should be led by public scientists
Journals should be publicly owned
& "Number of papers published" should mean nothing to anyone

#AcadmicChatter
November 17, 2025 at 12:55 AM
markinchina.bsky.social
I've lived on the top floor before, but previously this was in the context of a bedroom in the attic 😅

The view over Shenzhen Bay and Hong Kong is slightly better this time 😆
Downtown Shenzhen at night Downtown Shenzhen with Shenzhen Bay in the background and Hong Kong beyond that
November 17, 2025 at 12:27 AM
Reposted by Mark Hopwood
davidho.bsky.social
In the latest Global Carbon Budget, the estimate of the ocean carbon sink was increased by 0.8 Gt of CO₂ due to methodological changes.

Each mCDR deployment aims to remove a tiny fraction of that, so if people think we have the methodology to do proper MRV for mCDR right now, they're delusional. 🌊
In our revised assessment, we increase the GOBMs estimate by 10 ₫ 8% and the fCO-products estimate by 0.18 ± 0.4 GtC/yr. These two corrections combined lead to an increase of S_ocean by 0.22 ÷ 0.23 GtC/yr for the 2014-2023 period.
November 13, 2025 at 12:03 PM
Reposted by Mark Hopwood
brookeweigel.bsky.social
Another excellent dive in the kelp forest today! 🤿 🌊 @stanfordhopkins.bsky.social
November 13, 2025 at 2:18 AM
Reposted by Mark Hopwood
creacleanair.bsky.social
🇨🇳 📰 NEW | Analysis: #China’s #CO2 #emissions have now been flat or falling for 18 months

www.carbonbrief.org/analysis-chinas-co2-emissions-have-now-been-flat-or-falling-for-18-months/

@laurimyllyvirta.bsky.social w/ @carbonbrief.org
November 11, 2025 at 2:27 AM
Reposted by Mark Hopwood
jgroceans.bsky.social
Ask not what your journal can do for you—ask what you can do for your journal 🌊

JGR:Oceans is now looking for new Editors and Associate Editors, if you're interested get in touch. We don't bite! 😀
Editor and Associate Editor positions at JGR:Oceans
November 11, 2025 at 1:38 AM
Reposted by Mark Hopwood
helenczerski.bsky.social
Oh, I love this. A new species of sea anemone was discovered recently that parks itself on top of a hermit crab shell like a hat. It seems to feed partly off the crab's faeces, but it also excretes a hard shell that extends the crab's home. In return, it's carried around the seafloor like a king.
Pictures of a pink sea anemone sitting on top of a hermit crab shell.
November 10, 2025 at 9:57 PM
markinchina.bsky.social
Free t-shirts must rank close to free food in the hierarchy of student motivation 😆

Our lab releases its first clothing line featuring work from our oceanography field program in Daya Bay 🌊
T-shirt with a science logo
November 10, 2025 at 1:39 AM
markinchina.bsky.social
A key theme in the State of The Cryosphere reports is the same every year. The only effective option to reduce the impacts, damage and cost of climate change is to cut greenhouse gas emissions as quickly as possible. The faster emissions fall, the lesser the damage.

iccinet.org/statecryo25/
State of the Cryosphere Report 2025 – ICCI – International Cryosphere Climate Initiative
iccinet.org
November 10, 2025 at 1:35 AM